Dr. William O'Connor Jr, MD

Family Medicine  |  
Male  |  
Age 66
Insurances AcceptedSave
Dr. William O'Connor Jr, MD
Born in Northeastern Ohio, I was raised on a farm where I learned being a good neighbor can turn out to be a life-saving proposition. In High School, I designed the school crest, was voted the wittiest, and scored the highest in the state of Ohio's Preliminary Scholastic Aptitude Test in biology, afterwards, joining the Air Force to become an Advanced Electronic Sensor System's technician and achieving the highest ranking as a student leader before ending up in Vietnam in time to participate in the spring offensive of 1972 in Da Nang. After the war, I acquired a double major with honors in Molecular Cellular and Developmental Biology and English literature at the University of Colorado where I received the Van Eck award for academic achievement and community service with sufficient credentials to be accepted to five medical schools but chose the Univ. of Cincinnati College of Medicine because it promised the best education in clinical medical skills. There, in my spare time, I became expert enough in Nuclear Power issues to be instrumental in closing the Zimmer Nuclear Power plant, the last nuclear energy generating facility to be constructed in the United States, of course, no plaque was placed acknowledging the people who kept the Ohio valley from becoming a Chernobyl or Fukushima. I acquired an excellent broad based practical education doing a residency through the Univ. of Calif. Davis (where, later, for 10 years I was an assistant clinical professor) at the San Joaquin County hospital. After residency, I took a position as the medical director of the Vacaville Community Clinic and for 16 years served the indigent and poor of Northern Solano County so well that when the National Institutes of Health surveyed all the community clinics in the country mine was found to have taken care of more Medicare and Medicaid patients for the lowest costs of any in the nation; so they placed the first managed medicaid plan here because they figured it couldn't fail. However, when the reimbursements went to a capitated rate of 13 dollars per patient per month, the clinic could not economically survive and went bankrupt--proving no good deed goes unpunished. So,I went into private practice where to this date I have maintained an office.

300 Mason St

Vacaville, CA 95688

Contact Information
Dr. William O'Connor Jr, MD

Dr. William O'Connor Jr, MD

Accepted insurance

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of California
  • Cigna

*Please verify this information when scheduling an appointment.

Learn about Dr. O'Connor Jr

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Dr. O'Connor Jr's Experience

Dr. O'Connor Jr's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Family Medicine
  • No malpractice claims found
  • No sanctions found
  • No board actions found

Care Philosophy

This content was provided by Dr. O'Connor Jr "Reducing suffering and prolonging life by applying my intellect to educate people so that they understand the reason for adopting the methods necessary to improve their health and do it in the safest most cost effective manner to prevent further disease."


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  • Family Medicine
  • Non-Surgical Orthopedics

Board Certifications

Dr. O'Connor Jr does not have any board certifications listed.


Conditions Treated

  • Achilles Tendinitis
  • Allergies
  • Anxiety
  • Arthritis
  • Arthritis of the Ankle
  • Arthritis of the Elbow
  • Arthritis of the Finger
  • Arthritis of the Hand
  • Arthritis of the Midfoot
  • Arthritis of the Neck
  • Arthritis of the Shoulder
  • Arthritis of the Spine
  • Arthritis of the Wrist
  • Asthma
  • Ataxia
  • Autoimmune Diseases
  • Back Pain
  • Bone Disorders
  • Bursitis
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Cancer
  • Carpal Tunnel Syndrome
  • Cervical Spine Myelopathy
  • Chlamydia Infections
  • Chronic Neck Pain
  • Complex Regional Pain Syndrome (CRPS)
  • Degenerative Disc Disease
  • Depression
  • Diabetes
  • Diseases Contagious from Oral Sex
  • Diseases Contagious from Safe Sex
  • Diseases Contagious from Vaginal Sex
  • Elbow Injuries
  • Emphysema
  • Enthesopathy of Hip (incl. Trochanteric Bursitis)
  • Foot Conditions
  • Foot Fracture
  • Fracture
  • Fracture of Hand (incl. Fingers)
  • Ganglion Cyst
  • Genital Warts
  • Gout
  • Hand Conditions
  • Hand Fracture
  • Heart Disease
  • Heel Spur
  • Herniated Disc
  • High Cholesterol
  • Hyperlipidemia
  • Hypertension
  • Hypertension, Stress-Induced
  • Infectious Diseases
  • Injuries
  • Internal Derangement of Knee
  • Intervertebral Disc Disease
  • Joint Pain
  • Knee Arthritis
  • Knee Dislocation
  • Knee Disorders
  • Knee Sprain
  • Lateral and Medial Epicondylitis (Tennis and Golf Elbow)
  • Limb Cramp
  • Limb Pain
  • Low Back Pain
  • Medial Collateral Ligament (MCL) Sprain
  • Menopause
  • Non-Traumatic Rupture of Achilles Tendon
  • Obesity
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Osteopenia
  • Osteoporosis
  • Patellofemoral Pain Syndrome or Knee Pain
  • Peripheral Autonomic Neuropathy
  • Peripheral Nerve Disorders
  • Plantar Fasciitis
  • Pneumonia
  • Post-Traumatic Arthritis
  • Primary Hypertension
  • Radiculopathy (Not Due to Disc Displacement)
  • Rib Fracture
  • Rotator Cuff Tear
  • Runner's Knee
  • Sexually Transmitted Diseases (STDs)
  • Shoulder Disorders
  • Shoulder Impingement Syndrome
  • Shoulder Tendinitis and Tenosynovitis
  • Skin Cancer
  • Spinal Stenosis
  • Spine Disorders
  • Spondylolisthesis
  • Sprains and Strains (incl. Muscle Tear)
  • Symptomatic Menopause
  • Wear and Tear Arthritis
  • White Coat Hypertension


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  • Abscess Incision and Drainage
  • Biopsy
  • Breast Exam
  • Dressing and-or Debridement of Wound, Infection, or Burn (incl. Negative Pressure Wound Therapy)
  • Electrocardiogram (EKG)
  • Excision, Shaving, or Destruction of Skin and Subcutaneous Tissue (incl. Mohs Micrographic Surgery), Tissue Transfer
  • Excisional Biopsy
  • Gynecologic Cancer Screening
  • Immunization
  • Joint Drainage
  • Joint Injection
  • Mole Removal
  • Myofascial Trigger Point Injection
  • Pap Smear
  • Steroid Injection

Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Univ of Colorado
    Undergraduate School | Graduated 1977
  • University Of Cincinnati College Of Medicine
    Medical School | Graduated 1981
  • San Joaquin Genl Hospital
    Internship Hospital | Completed 1982
  • San Joaquin Genl Hospital
    Residency Hospital | Completed 1984

Awards & Recognition

Awards & Honors

Dr. O'Connor Jr has no awards or honors listed.

Media & Publications

Dr. O'Connor Jr has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

Dr. O'Connor Jr does not have any memberships or affiliations listed. If you are Dr. O'Connor Jr and would like to add memberships or affiliations, please update your profile.

Dr. O'Connor Jr's Reviews

Likelihood of recommending Dr. O'Connor Jr to family and friends
based on 14 total reviews (4 with comments)
Dr. O'Connor Jr's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    Under 10 minutes
Patient Comments (4)
in Vacaville, CA |
Dr. O'Connor is the best doctor I have ever seen. He listens and pays attention to every word you say and has been right on the bulls-eye with me. He fixed my neck after 50 years of pain, not even the Arthritis Foundation in Walnut Creek could do that. They just fed me pills...... Dr. O'Connor actually FIXED my neck and I am PAIN FREE. He diagnosed a long term problem and I have never been so happy with going to someone who actually cares. Thank you so much, he is greatly appreciated.
in Fairfield, CA |
Dr. O'Connor is simply phenomenal! Our daughter had been suffering from back problems for years and he was the only one who accurately diagnosed and fixed her problem. With a few sessions of manipulating her back, she no longer suffers from scoliosis. It was truly amazing to see her spine go from curved to straight within a month! This man is Fantastic at diagnosing, takes time with his patience and is genuinely interested in helping people. Wonderful office staff as well!
in Vacaville, CA |
I have had severe pain in my sub-scapular area, up into my shoulder and down my arm for over 20 years. I was told 14 years ago it was due to scar tissue in my sub-scapular area and underwent physical therapy with no improvement. The pain has been a constant in my life. Dr. O'Connor diagnosed me with a herniated cervical disc at the cervicothoracic junction. With one session, he was able to manipulate my disc back into place. Unbelievably, I no longer suffer from debilitating shoulder pain!!
in napa, CA |
Brilliant. I looked years for a very gifted doctor who knew his stuff. Much smarter than the other clown doctors (if that's not too strong a word) who looked the part but missed things he caught. Best doctor for general medicine and spinal issues in Solano County hands down! Also don't have to wait a month with other doctors who like to look busy by making patients wait for an appointment.
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Now Accepting New Patients
This provider offers the following appointment availability:
Same Day
Next Day
Dr. O'Connor Jr accepts 4 insurance carriers
  • Aetna
    Aetna HMO
    Choice Plus POS II
  • Blue Cross Blue Shield
    Blue Card PPO
  • Blue Cross Blue Shield of California
    Advantage Preferred DirectAccess Plus PPO
    Blue Cross Blue Shield of California PPO
    Select Plus HMO
  • Cigna
    Cigna HMO
    Cigna PPO
    Open Access Plus

*Please verify this information when scheduling an appointment.

Hospitals where Dr. O'Connor Jr has admitting privileges

Sutter Solano Medical Center
300 Hospital Dr
Vallejo, CA 94589
View Hospital Profile